" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y=-5
maka
8(7)+n(5) = 31
56+5n = 31
5n = 25
n=5
dan
m(7)+(5)(-5)=3
7m-25 = 3
7m = 28
m = 4
maka 3mn = 3(4)(5) = 60